History 37,835 Politics and government 6,119 African Americans 4,941 Description and travel 4,201 Genealogy 4,176 Church records and registers 3,833 Sources 3,038 more ... Biography 2,996 Jews 2,973 Periodicals 2,932 Indians of North America 2,931 Societies, etc 2,780 Census records 2,579 Deeds 2,554 Social life and customs 2,540 Slavery 2,506 Streets 2,230 Social conditions 2,222 Registers of births, etc 2,166 Histoire 2,063 Emigration and immigration 1,985 Education 1,777 Bibliography 1,676 Probate records 1,600 Churches 1,547 Almanacs, American 1,539 Church history 1,455 Race relations 1,335 Railroads 1,308 Economic conditions 1,305 Families 1,174 Women 1,170 Clergy 1,155 Cooking, American 1,099 Study and teaching 1,075 Vital records 1,071 Presidents 1,061 Foreign relations 1,053 Lutheran 1,044 Religious life 1,041 less ...